Textile

"As far as we have been able to determine, there are no other directly coupled schemes for accomplishing this fine control of yarn so conveniently, so economically, and so reliably."

"We need high precision in maintaining speed relationships between critical machine components. The speed relationships are locked by gear ratios…. But we must be able to vary the speed of the winder independently and with sufficient precision to give us fine control of package density and of yarn tension. Sumitomo does this so conveniently, economically and reliably."